Results 111 to 120 of about 33,890 (308)
GeoresursyA detailed study of gold from placers and eluvium of the ore zones of the Amazarkan deposit, located in the basin of the three upper tributaries of the Amazar River, was carried out. The placers are not very far from the primary sources.
V. V. Kolpakov +2 more
doaj +1 more source
Arsenic in the Water, Soil Bedrock, and Plants of the Ester Dome Area of Alaska [PDF]
, 1982 Concentrations of arsenic as large as 10 ppm (200 times the safe limit for drinking water) occur in the groundwater of a mineralized residential area near Fairbanks. Bedrock of the area contains 750 ppm As, primarily as arsenopyrite and scorodite. The
Dinkel, Donald +3 more
core
Advanced Functional Materials, EarlyView.Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz +3 more
wiley +1 more source
Glacial Erosion Drives High Summer Mercury Exports from the Yukon River, Canada. [PDF]
Environ Sci Technol Lett, 2023 Staniszewska KJ, Reyes AV, Cooke CA.
europepmc +1 more source
Advanced Functional Materials, EarlyView.A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song +3 more
wiley +1 more source
Геологія і корисні копалини Світового океану, 2019 According to foreign studies, significant (including industrial) concentrations of small and thin gold (STG) were found in quaternary sediments of syneclises and avlacogens of the East European platform.
I.E. Lomakin, V.V. Kochelab
doaj +1 more source
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
Руды и металлыThe article provides conclusions on the history of development of the topography within the Kurtushibinsky metallogenic zone, based on compilation of maps of the vertex and base surfaces of different levels. The areas of erosion and accumulation of loose
Makarov V. A. +5 more
doaj +1 more source
Annual report of research progress [PDF]
, 1969 The great importance of minerals to a state's sound economy can be no better illustrated than by the discovery of oil and gas in Alaska in 1957 in the Kenai Peninsula. This event has led to the establishment of local basic and secondary industries which
MIRL
core +1 more source
Hot‐Film and Calorimetric Methods With Transient Heating for Measurement of High Biofluid Flow Rate
Advanced Functional Materials, EarlyView.Accurate measurement of biofluid flow rate is vital for clinical diagnostics. We propose a transient heating strategy using short thermal pulses and peak temperature tracking to enhance the flow sensitivity of the hot‐Film and calorimetric methods. Simulations show how optimal heating time maximizes sensitivity across flow rates.
Yuanting Wei +8 more
wiley +1 more source